<?php
/*
Copyright (C) 2009 de Flotte Maxence

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
?>
<?php
function cleanZzG() {
	//On ouvre le fichier de log dans $_tree
		//On creer le fichier log si il n'existe pas & on le récupère dans la variable $_tree
			if(!file_exists('./ZzG/tree.log')) {
				$_tree['totalSize'] = 0;
				file_put_contents('./ZzG/tree.log', serialize($_tree));
			}
			else
				$_tree = unserialize(file_get_contents('./ZzG/tree.log'));
	
	//On definit l'age maximum des fichier
	$maxLastAccessTime = $GLOBALS['DefaultMaxLastAccessTime'];
	//On parcour $_tree tant que totalSize > MaxTrigerCacheSize
	while($_tree['totalSize'] > $GLOBALS['MaxTrigerCacheSize']) {
		$maxFileATime = time() - $maxLastAccessTime;
		foreach($_tree as $file => $size)
			if($file != 'totalSize')
				if(fileatime($file) < $maxFileATime) {
					unset($_tree[$file]);
					$_tree['totalSize'] -= filesize($file);
					unlink($file);
				}
			
		$maxLastAccessTime /= 2;
	}
	//On enregistre de fichier log
		file_put_contents('./ZzG/tree.log', serialize($_tree));
}
?>